I don't think XP home can do password folders for this is no Use simple file sharing option to tick or untick, as referenced by the guide you linked to and theres no password option on the sharing tab. i do have ntfs

this is alittle work around until this gets figured out...create a folder in my docs and give it a hidden attrib and then you can put all your porn in there and just show all files when you want to get to the folder.